On the bulk temperatures of dry rubbing metallic solid pairs

Abstract

The calculation of temperature fields that develop in rubbing metallic pairs is customary performed under the assumption of a steady state and; that heat is released at the interface of the rubbing pair. These assumptions have several drawbacks as they neglect the role of the subsurface structural deformations which gives rise to internal heat generation. This paper introduces a solution for the transient temperature fields developed within two rubbing metallic solids with internal heat generation that varies exponentially with the distance from the nominal contact surface. The results indicate that in contrast to the customary models, the maximum temperature appears at some distance in the subsurface region. A result that is supported by the experimental observations of different authors.